“They are uniquely designed in that the design of those turbines generate, they’re generating four and a half times as much energy than if the turbines were standing alone in a more traditional structure.”

The innovative “helical wind turbine” uses a cylindrical shape to rotate and keep its four, six-foot turbines directed into the strongest winds.

According to the report on how the pro-sports industry is helping the environment, Progressive Field has cut trash in half since 2007. That saves $50,000 a year in pickups. The Indians have also reduced the stadium’s carbon footprint by 42,000 pounds of CO2 emissions yearly.